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Worksheet Bonding Basics and Covalent Bonds with Answers, Exercises of Chemistry

practice school level general chemistry concepts

Typology: Exercises

2020/2021

Uploaded on 04/20/2021

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Bonding Basics - Covalent Bonds
Name _______________________
Complete the chart for each element.
Follow your teacher’s directions to complete each covalent bond.
(1) Hydrogen + Hydrogen
(2) Hydrogen + Oxygen
T. Trimpe 2002
Element
# of Protons
# of Electrons
# of Valence Electrons
# of Electrons to Fill
Outer Shell
Carbon
Chlorine
Hydrogen
Phosphorus
Oxygen
Sulfur
Nitrogen
pf3
pf4

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Bonding Basics - Covalent Bonds Name _______________________

Complete the chart for each element.

Follow your teacher’s directions to complete each covalent bond.

(1) Hydrogen + Hydrogen

(2) Hydrogen + Oxygen

Element # of Protons # of Electrons # of Valence Electrons # of Electrons to Fill Outer Shell

Carbon

Chlorine

Hydrogen

Phosphorus

Oxygen

Sulfur

Nitrogen

(3) Chlorine + Chlorine

(4) Oxygen + Oxygen

(5) Carbon + Oxygen

(6) Carbon + Hydrogen

(3) Chlorine + Chlorine (Diatomic Element)

(4) Oxygen + Oxygen (Diatomic Element)

(5) Carbon + Oxygen

(6) Carbon + Hydrogen

Cl Cl Cl

Cl Cl Each chlorine atom needs one more electron to fill the

outermost energy level. By sharing one pair of electrons, both atoms are able to complete their outer shells.

O

Each oxygen atom needs two more electrons to fill the outermost energy level. By sharing two pairs of electrons, both atoms are able to complete their outer shells.

O

O O O

O C^ O

Each oxygen atom needs two more electrons to fill the outermost energy level and the carbon atom needs four electrons. By sharing two pairs of electrons, all three atoms are able to complete their outer shells.

O C O CO

C

H

H

H H

Each hydrogen atom needs one more electron to fill the outermost energy level and the carbon atom needs four electrons. By sharing one pair of electrons, hydrogen and carbon are able to complete their outer shells.

H C H^ CH

H

H